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7.10.12 The ndbinfo cpustat_50ms Table

The cpustat_50ms table provides raw, per-thread CPU data obtained each 50 milliseconds for each thread running in the NDB kernel.

Like cpustat_1sec and cpustat_20sec, this table shows 20 measurement sets per thread, each referencing a period of the named duration. Thus, cpsustat_50ms provides 1 second of history.

The following table provides information about the columns in the cpustat_50ms table. For each column, the table shows the name, data type, and a brief description. Additional information can be found in the notes following the table.

Table 7.26 Columns of the cpustat_50ms table

Column Name Type Description
node_id integer ID of the node where the thread is running
thr_no integer Thread ID (specific to this node)
OS_user_time integer OS user time
OS_system_time integer OS system time
OS_idle_time integer OS idle time
exec_time integer Thread execution time
sleep_time integer Thread sleep time
send_time integer Thread send time
buffer_full_time integer Thread buffer full time
elapsed_time integer Elapsed time

This table was added in NDB 7.5.2.


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